<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <button>一号</button>
    <button>二号</button>
    <button>三号</button>
    <button>4号</button>
    <button>5号</button>
    <button>6号</button>
    <button>7号</button>
    <button>8号</button>

</body>

</html>